Question

Write the conjugate acids for the following Bronsted bases ${NH}_2^{-},{NH}_3$ and ${HCOO}^{-}$.

Answer 1

To convert the Bronsted base into their conjugate base, the base has to gain a proton.
$\underset{\text{Bronsted Base}}{{NH}_2^{-}}+H^{+}\to \underset{\text{Conjugate acid}}{{NH}_3}$

The conjugate acids for the Bronsted bases ${NH}_2^{-},{NH}_3$ and ${HCOO}^{-}$ are ${NH}_3,{NH}_4^{+}$ and $HCOOH$ respectively.